It doesnt raise the look of the ceiling, it makes it look shorter. You use crown moulding around a ceiling not picture moulding

Picture molding can be applied to walls in rectangles and perhaps make your room appear taller, but it's a very traditional house detail.

You show your room and what you think you are attempting to DO

We need context so post pics of your space with your stuff , here in comments in jpeg format not tiny screen shots . DO NOT start another post